1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d864ab71c2ef0a1e406ec68f84f3c856d8558d9bac3b985637a77bc61813e0. Chain 2 (Bitcoin): anchored in block 953943 (2026-06-16T11:59:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21e60792-6671-444b-bb8a-e05f97df990c.json and https://artists.proofprofile.net/proofs/artist/21e60792-6671-444b-bb8a-e05f97df990c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62360f525ca335d0eb47ade090a95bcb4a5f46562ce13af37b6135794b2d779. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM121501478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132a424ce009384fe65b0cd690c88f173ec9fe160fb85a4846f70cd6ba5d761b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM121501493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909d725bbbbee435ff555708aeeba83a3011ea2745a24ddb834a64b8ceb33131. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM121501494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84641eeb5f80364f7c09446e08f95e93d6c9b55265634458fd01479ac739eae6. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM121501496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac23d2291d13f61a9efa5018aa3d170e2d7682c71ef284d7e5934e2d92ffae0. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM121501498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea706de77d6cf0778b81050aebcc7f2b6279d6afd2cda15961a61f05e1e94cf. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM121501499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d24caea3d8304f41a86c0b0b84250ae3e16aa3e182adeabdf03ea3f638f746. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM121501501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb012bca1cdfcec1a0b5123c83b9b1499d3bc5ef280bece8dd6edd296321ba6f3. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM121501502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6155cd4b1e52a9e0cef98a87a3393890554a776334f802d54e39c51c32acd4a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM121501503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679fd4d471a88dc7222f4483c7be6eea3abcd3cac83718eba98d951a53258be9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM121501504.
El Camino de Siempre (Soundtrack De La Aduana a Nashville)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681115fdb7340e949b1ed82694d99f7c9f68d35965c161e1149edfdccb0869f1. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM122002593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aca8f599087dca24526530ef0aad51ea13ae82a303c8c6ecf0ffcdfba928555. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM122002594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439fef87d8909da11b93ae06bbc41498183fceaa83333c2c574207a23337b615. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM122003324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b8274f40c81019b338400cfe33901c0cab444804d5196ab724994ba823b997. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM122003326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37186f3e07e50ed8ad1702f8723659511b46879811634e9b9ac892d5f2d32d2. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM122003329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8dedeebe7df4724ce1e97468c53b74871030e553c8665b1b65f01d42c17ff83. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM121600244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd793775c07831e1666b123a37f83c8ae24473f14c9d3ef602a1992795cde7c8a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB142319601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0974bb2a6de49beb95f41f22be47ed6123e462d2aa0af569269340d563918f. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB142319604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15555084878def7045cc05b64c54f7d874b0c366d63e01bd4905682a1e53a85a. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB142319603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc159112ed4204c6f78912f1de6a031466f323ffc4a5ad5320571b6c7e263850. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB142319605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80cedb1b6700ce405dac41a1f3af6338629564fb302cc1d3f1b805f2e92f0f2d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB142319606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c046b3b59224540726ada59b96cf01e0151bfbc86066bfcdb1d6914953d911c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB142319602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1a16a85037d12bd7a9f8ea57219f709594cd2796b6a6a93892f4f48c421e04. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB142319607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b0acb50a5a75bda761318f008050c4806c2a554f6f8ecfaed8f438f59f2710. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XX2505981.
Fan de Faith No More (Versiones y Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf3ed97e5ab07c6285c7258387dadba6b918163ed31e2f7aadf8cd9437f5596. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB141300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6880f71795d2fc0ed8688d48c2c8bee62f25db1c1a741a63ffc8be8df309ee52. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB141300302.
Capitán Kirk - Sr. Capitán - Fran Nasser y AFC Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252a32124481a26485cb1d04f7ac3af6fb7b5a073dd4a95e31837b9790d898e0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB141300303.
Por fin me alejé de ti - Se Vino la Noche - Ut Ut Ut Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c6e2ae56660549f7e48254e61e4a0ffbe68d94b2b90c7a2af89a520dc1326b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB141300304.
Nociones utilitarias del amor (DILDO! Remixes)